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公开(公告)号：US20120160024A1
公开(公告)日：2012-06-28
申请号：US13337398
申请日：2011-12-27
CPC分类号： G01K13/02 , G01F1/6842 , G01F5/00 , G01F15/185 , G01K1/16 , G01K2205/02
摘要： An intake temperature sensor capable of precisely detecting the temperature of intake at high speed even in a low air mass flow zone is provided. In an intake temperature sensor having a temperature detecting element 6 inserted in an opening provided in an intake pipe 3 to be disposed in the intake pipe, a temperature detecting element is mechanically joined with a heat sink 4 directly exposed to the flow of the intake flowing in the intake pipe, and the temperature of the intake is output based on an output obtained from the temperature detecting element. Thus, the thermal resistance of the temperature detecting element with respect to the intake flow can be reduced; therefore, the intake temperature sensor capable of precisely detecting the temperature of the intake at high speed even in the low air mass flow zone can be provided.
摘要翻译： 提供了即使在低空气质量流量区域也能够高精度地检测进气温度的进气温度传感器。 在具有插入到设置在进气管3内的进气管3中的开口中的温度检测元件6的进气温度传感器中，温度检测元件与直接暴露于进气流动的散热器4机械接合 在进气管中，并且基于从温度检测元件获得的输出来输出进气温度。 因此，可以降低温度检测元件相对于进气流的热阻; 因此，即使在低空气质量流量区域中也能够高精度地检测进气温度的进气温度传感器。
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公开(公告)号：US08069718B2
公开(公告)日：2011-12-06
申请号：US12121520
申请日：2008-05-15
IPC分类号： G01F1/68
CPC分类号： G01F1/6845 , G01F1/692 , G01F1/699
摘要： A simply configured thermal flowmeter can provide high measurement accuracy over a long period of time by suppressing the characteristics degradation due to adhering contaminants. On the surface of a diaphragm part, a heater resistor is formed. Temperature difference sensors through are disposed on the two sides of the heater resistor (upstream and downstream sides in the flow direction of an air stream). The temperature difference sensors are disposed upstream of the heater resistor while the temperature difference sensors are disposed downstream of the heater resistor. Outside the temperature difference sensors, heating temperature sensors are formed. Control is performed so that the temperature of the heating temperature sensors is set higher than the air stream temperature by a certain degree. Therefore, even if contaminants adhere to the sensor device, the temperature of the heating temperature sensors is held constant. Since the temperature difference sensors to detect the flow rate is located between the heating temperature sensors, the temperature change due to the contamination is small. This suppresses the characteristics degradation, making it possible to provide high measurement accuracy over a long period of time.
摘要翻译： 简单配置的热流量计可以通过抑制由于污染物附着引起的特性劣化，从而在长时间内提供高测量精度。 在隔膜部件的表面上形成加热电阻器。 温差传感器通孔设置在加热电阻器的两侧（气流的流动方向的上游侧和下游侧）。 温度差传感器设置在加热电阻器的上游，而温差传感器设置在加热电阻器的下游。 在温差传感器之外，形成加热温度传感器。 进行控制，使得加热温度传感器的温度被设定为高于气流温度一定程度。 因此，即使污染物粘附到传感器装置上，加热温度传感器的温度也保持恒定。 由于用于检测流量的温差传感器位于加热温度传感器之间，因污染导致的温度变化小。 这抑制了特性劣化，从而可以在长时间内提供高测量精度。
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公开(公告)号：US20110048127A1
公开(公告)日：2011-03-03
申请号：US12855347
申请日：2010-08-12
CPC分类号： G01N27/18
摘要： Provided is a high-precision, mechanically robust thermal humidity sensor. A detecting element 1 of the thermal humidity sensor of the present invention has a diaphragm (a bridge structure) 2 formed on a planar substrate which is formed from a material with high thermal conductivity such as silicon or ceramic. Formed on the diaphragm 2 are temperature detecting resistors 4, 5, 6, and 7 and a heating resistor 3 arranged in a manner surrounding the temperature detecting resistors. Humidity is detected based on the outputs of the temperature detecting resistors 4, 5, 6, and 7. Accordingly, humidity measurement errors that can possibly occur due to the leakage of heat through the diaphragm 2 to the planar substrate can be reduced.
摘要翻译： 提供了一种高精度，机械坚固的热湿度传感器。 本发明的热湿度传感器的检测元件1具有形成在由诸如硅或陶瓷等导热性高的材料形成的平面基板上的隔膜（桥结构）2。 形成在隔膜2上的是温度检测电阻4,5,6和7以及围绕温度检测电阻器布置的加热电阻3。 基于温度检测电阻4,5,6和7的输出检测湿度。因此，可以减少由于通过隔膜2的热量泄漏到平面基板而可能发生的湿度测量误差。
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公开(公告)号：US07656624B2
公开(公告)日：2010-02-02
申请号：US11656994
申请日：2007-01-24
IPC分类号： H02H7/00
CPC分类号： H02H9/046 , H01L27/0248 , H02H11/002
摘要： An IC power protection circuit functions as a surge protection circuit and reverse connection protection circuit. The IC power protection circuit includes an error amplification circuit, positioned and integrated within an integrated circuit and a transistor positioned as a stand-alone element that is separate from the integrated circuit. The integrated circuit includes a sensor signal processing circuit that processes a signal of a sensor. A transistor protects the integrated circuit against a surge voltage from a battery terminal. A resistor is positioned between an output terminal of an error amplifier and a base terminal of the transistor to provide reverse connection protection. Another resistor is connected between a ground and a connection point between the above resistor and the output terminal to provide overvoltage protection for the integrated circuit. A starting resistor is connected between a collector and base of the transistor.
摘要翻译： IC电源保护电路用作浪涌保护电路和反向连接保护电路。 IC电源保护电路包括位于并集成在集成电路内的误差放大电路和定位为与集成电路分离的独立元件的晶体管。 集成电路包括处理传感器的信号的传感器信号处理电路。 晶体管保护集成电路免受来自电池端子的浪涌电压的影响。 电阻器位于误差放大器的输出端子和晶体管的基极端子之间，以提供反向连接保护。 另一个电阻连接在上述电阻和输出端之间的接地点和连接点之间，为集成电路提供过压保护。 启动电阻连接在晶体管的集电极和基极之间。
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公开(公告)号：US07631555B2
公开(公告)日：2009-12-15
申请号：US10580112
申请日：2003-11-20
申请人： Hiroshi Nakano , Masamichi Yamada , Masahiro Matsumoto , Izumi Watanabe , Keiji Hanzawa , Keiichi Nakada
发明人： Hiroshi Nakano , Masamichi Yamada , Masahiro Matsumoto , Izumi Watanabe , Keiji Hanzawa , Keiichi Nakada
IPC分类号： G01F1/68
CPC分类号： G01F1/6965 , G01F1/6845
摘要： A thermal air flowmeter having excellent temperature characteristics and improved measurement accuracy. The thermal air flowmeter includes a temperature sensor disposed in a casing of the air flowmeter, a computing unit for correcting a flow rate detection voltage from a measuring element by using the temperature sensor, and a heating temperature control disposed in a temperature control circuit for performing temperature control of a heating resistor to vary a temperature rise of the heating resistor relative to an air temperature depending on the air temperature. Flow rate detection errors of the thermal air flowmeter caused by an overall temperature change and a temperature change on an intake passage wall surface can be corrected simultaneously and a thermal air flowmeter having superior measurement accuracy can be realized.
摘要翻译： 具有优异的温度特性和改进的测量精度的热空气流量计。 热空气流量计包括设置在空气流量计的壳体中的温度传感器，用于使用温度传感器校正来自测量元件的流量检测电压的计算单元，以及设置在温度控制电路中的加热温度控制，用于执行 加热电阻器的温度控制以根据空气温度改变加热电阻器相对于空气温度的温度升高。 可以同时校正由总体温度变化和进气通道壁面上的温度变化引起的热空气流量计的流量检测误差，并且可以实现具有优异的测量精度的热空气流量计。
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46.发明授权Thermal type flow rate measuring apparatus having decrease in coupling capacitance between wiring portions of detection element 有权热式流量测量装置，其检测元件的布线部分之间的耦合电容降低公开(公告)号：US07617723B2
公开(公告)日：2009-11-17
申请号：US11765736
申请日：2007-06-20
IPC分类号： G01F1/68
CPC分类号： G01F1/6845 , G01F1/692 , G01F1/6986
摘要： The coupling capacitance of the wiring portions of a thermal type flow rate measuring apparatus is reduced so as to prevent a drop in the response characteristics. A detection element of the thermal type flow rate measuring apparatus includes a planar substrate made of silicon, ceramic, or the like, in which a diaphragm is formed. On the surface of the diaphragm, there are disposed a heat-generating resistor as a heat-generating element that is heated to a predetermined temperature difference from the temperature of air flow to be measured, a heat-generating element temperature-detecting resistor for detecting the temperature of the heat-generating resistor, and temperature-detecting resistors disposed on both sides of the heat-generating resistor. The detection element also includes wiring portions which have connecting terminals electrically connected to the heat-generating resistor and a wiring pattern electrically connected with the surface of the planar substrate.
摘要翻译： 热式流量测量装置的布线部分的耦合电容减小，以防止响应特性的下降。 热式流量测量装置的检测元件包括其中形成有隔膜的由硅，陶瓷等制成的平面基板。 在隔膜的表面上设置有发热电阻器作为发热元件，其被加热到与要测量的空气流的温度的预定温度差，用于检测的发热元件温度检测电阻器 发热电阻器的温度和设置在发热电阻器两侧的温度检测电阻器。 检测元件还包括具有与发热电阻器电连接的连接端子的布线部分和与平面基板的表面电连接的布线图案。
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公开(公告)号：US20050091428A1
公开(公告)日：2005-04-28
申请号：US10491285
申请日：2001-10-02
摘要： A master unit sends a start signal to a slave unit. When receiving the start signal from the master unit, the slave unit sends, to the master unit, a synchronization field that is a data train (pulse signal) indicative of a transfer clock with which the slave unit is able to perform transferring and receiving operations. The master unit sends, to the slave unit, command data in accordance with the transfer clock indicated by the synchronization field sent from the slave unit. In response to the command data sent from the master unit, the slave unit sends, to the master unit, response data in accordance with the transfer clock indicated by the synchronization field. Thus, in a communication system employing a serial data transferring apparatus of the present invention, the master unit establishes the synchronization for the data transfer, while the slave unit is free from a burden of establishing the synchronization for the data transfer. A serial data transferring apparatus is realized which can simplify the structure of the slave unit, cut the total cost, and reduce noise.
摘要翻译： 主单元向从单元发送启动信号。 当从主单元接收到起始信号时，从单元向主单元发送同步字段，该同步字段是指示从单元能够执行传送和接收操作的传送时钟的数据串（脉冲信号） 。 主单元根据从从单元发送的同步字段指示的传送时钟向从属单元发送命令数据。 响应于从主单元发送的命令数据，从单元根据由同步字段指示的传送时钟向主单元发送响应数据。 因此，在采用本发明的串行数据传送装置的通信系统中，主单元建立用于数据传送的同步，而从单元没有建立用于数据传送的同步的负担。 实现了串行数据传送装置，其可以简化从单元的结构，降低总成本并降低噪声。
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48.发明授权
公开(公告)号：US5506454A
公开(公告)日：1996-04-09
申请号：US059069
申请日：1993-05-10
CPC分类号： B60R21/0173 , B60R21/01 , G01P15/04 , G01P15/125 , G01P21/00 , G01R31/007 , G01P2015/0828
摘要： An apparatus for diagnosing the characteristic of an acceleration sensor and a method for diagnosis thereof are disclosed. The acceleration sensor includes a movable electrode (or mass part) displaced in accordance with an acceleration and a fixed electrode disposed opposite to the movable electrode. In a diagnosis mode, a signal for diagnosis is applied to the fixed electrode so that an electrostatic force as a force corresponding to a predetermined acceleration is generated between the fixed electrode and the movable electrode. In the case where the acceleration sensor is sound, the movable electrode or mass part is normally displaced. A failure of the acceleration sensor, the deterioration thereof in performance, a change in characteristic thereof caused from the lapse of time, or the like is self-diagnosed by detecting a change in capacitance between the movable electrode and the fixed electrode upon generation of the diagnosis signal. The force corresponding to the predetermined acceleration may be an electromagnetic force or a mechanical oscillation based on a piezoelectric element.
摘要翻译： 公开了一种用于诊断加速度传感器的特性的装置及其诊断方法。 加速度传感器包括根据加速度移位的可移动电极（或质量部分）和与可动电极相对设置的固定电极。 在诊断模式中，用于诊断的信号被施加到固定电极，使得在固定电极和可动电极之间产生作为与预定加速度相对应的力的静电力。 在加速度传感器是声音的情况下，可移动电极或质量部分通常位移。 通过检测可动电极和固定电极之间的电容变化，可以自诊断加速度传感器的故障，其性能的劣化，由于时间的流失引起的特性变化等 诊断信号。 对应于预定加速度的力可以是基于压电元件的电磁力或机械振荡。
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公开(公告)号：US09599496B2
公开(公告)日：2017-03-21
申请号：US14369285
申请日：2012-01-10
CPC分类号： G01F1/684 , G01F1/6842 , G01F1/6845 , G01F1/69 , G01F1/696 , G01F5/00 , G01F15/02
摘要： A flow rate measuring device with high precision is provided.The flow rate measuring device includes a sub-passage that takes a part of the fluid flowing in a main passage, first temperature measuring means for measuring a temperature of the fluid flowing in the passage, second temperature measuring means for measuring a temperature of a fluid flowing in the sub-passage, detecting means for detecting a flow rate of the fluid flowing in the sub-passage, and measuring means for measuring a flow rate of the fluid flowing within the main channel on the basis of an output of the first temperature measuring means, an output of the second temperature measuring means, and an output of the detecting means.
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50.发明授权公开(公告)号：US09574925B2
公开(公告)日：2017-02-21
申请号：US14411346
申请日：2012-06-27
摘要： A fluid measurement device includes a circuit unit into which a first signal output from a first detection element and a second signal output from a second detection element are input. The circuit unit includes a signal processing part, a state deciding part, and a controller. The controller controls an amount of change that a change of the first signal imparts to the third signal in accordance with a result of decision by the state deciding part that determines that the state of the first signal is not within the predetermined range. The predetermined range is based on the second signal.
摘要翻译： 流体测量装置包括电路单元，输入从第一检测元件输出的第一信号和从第二检测元件输出的第二信号。 电路单元包括信号处理部分，状态判定部分和控制器。 控制器根据状态判定部的决定结果决定第一信号的状态不在预定范围内，控制第一信号的变化赋予第三信号的变化量。 预定范围基于第二信号。
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